Roadbed construction for railways



Feb. 4, 1.930. w. P. DAY

HOADBED CONSTRUCTION FOR RAILWAYS 2 Sheets-Sheet l Filed July 15, 1929thune/41 I'IIIII' Feb. 4, 1930.

W. P. DAY

ROADBED CONSTRUCTION FOR RAILWAYS Filed July 15, 1929 2 Sheets-Sheet 2F? F- i y i5' RID, QQ' DIJE' iii um 1::

. iae'ntea ret; 4,. 1930k WILLIAM P. DAY, oF cLEvELAiID HEIGHTS, oHIo fy RoADisni) "cion'srnuorion non RAILWAYS Application mea .my `15:,

' invention relates to a` roadbed construction for street'or boulevardrailways and the main object of the invention is to provide a roadbedv'construc'tionfiirwhih any water` dra. 'ed away from tlipbiases oftherails and A prevented from Vcollecting' around the rail plates or theends of vthetes. f v ,y

Another, object of the inver/inonde. to) pie;

10:"vi`de al roadbd construction in which rails are supported.uponlalower layer or foundation of concrete wiiieh is ,provided .with dietaopenings which pemitthe datei to" drain away from thebasjespf the raus'.y j 15'v A farther object if the' invention iste' pro'- .vide aroad bedconstruction ofthe 'character 'de-sented which @hasta f a fanaauonarconerete which is provigdeolpwith suitable drain e(')peiiin'gs fordraining the water awayy 201 from the rails and in which the upperportion of the roadbed is frmed of one or more layersof road Iformingmaterial which is readily renivable to permity the rails to be removedik for replacement or repair. H i

f5 A turnier abject' er thaiavenuon ist@ pro'- .videa- @demonstrationof. irachene: described whiclfthevbasesof the-railsandthefaiipiaeetawhich ai@ maaar@ searea which will tend to direct thewater awajyv from the ,rails yand into suitable drain openings. A stillfurtherobject; of the invention is vto provide a yroadbed constructionof thecharacytery described which Aconsists of a concrete foundation onwhich are supportedsteel ties whihlare so'shapedand arranged that thecentral portions'y of the tieshare embedded in the `confcrete foundatienand the end portions i are deflectedupwardly and disposed in a planeabovethefoundation. l A y AFurther and more limited objects of the Iinvention willr appear asthe description projceeds .and by referencegtothe` accompanying drawing in which Fig. 1 is a verticall sectional viewthrough the roadbed disclosing the preferred embodimenty of myinvention;` Fig. 2 is a .verticalkpsectiona'l view on the line `22of 1,;Fig. 3 `isa top plan view of one ofthe if twin ties; and 4 is a view inend eleva-y tion of one of the twin ties.

are covered withV a, waterproofing material` 1929. seriai No. 378,233.

Referring now to the drawings, the reference characterl designates thebottom layer of concrete which will be referred to as the foundation.Disposed belowthe foundation and preferably between the rails is,y adrain conduit 2 w'hich extends longitudinally/ of the track andpractically parallel therewith,

` Arranged at intervals about three feet apart and extendingtransversely of the road-bed are trenches 3 from which lead branches 4,4a and 5, 5"?.v The trenches 3L and the branches 4, 4a and 5, 5a arepreferably filled with gravel, stone, cinders or Iother suitablematerial adapted to permit water to drain there? through and into themaindrain conduit 2 which is preferably formed of drain tile.

lSupported upon the foundation are ties 6 which are preferably `made .ofsteel and are of the twin type. The ties consist essentially ofrailplates 7 andS which are connected cross beams or angle bars 9 and 10.Therail plates arerprovlded with oppositely disposed pairs of T-shapedopenings 11 and 12 which securing `the rails in place. .The rail platesalsomhave portions ycuttherefrom and ,bent downwardly as shown moreclearly in Fig. 3, which portions are embedded :inthe road formingmaterial when the construction is completed. Each of the angle bars'orcross beams` 9 and 10 are `shaped as shown niosty are adapted toreceivetie clampsV therein fori clearlyin Figs; 3 and .4 and consistof acentral portionra, oppositely inclined portions o and end portions c'.The central portionsof theangle bars are preferably embedded in the'concrete foundation as shown most clearlyin Fig. 1. The endiportions care disposed in a plane above the foundation. The foundation is firstlaid with the rails arranged in vthe po-v sition1 shown in Fig. 1 andthe concretevis allowed to harden andset. The spaces beneath the railplates 7 andy are vthen filled witha waterproof `material known asbituminous concrete and which consists essentially of slag' and crudeasphalt in approximately thel following proportions: y y ,y v

3 parts fine slag, 2 parts coarse slag), 1 part crudel asphalt. Therails 13 and 14 are secured to the rail plates bysuitabletie clamps. Therail platesare'v also covered with bitumilnous concrete which extendsupwardly along each rail to a point adjacent the top thereof. Thismaterial 15 is inclined toward be seen that these two layers of materialcompletely fill'the space between the rails and adjacent thereto so thatonly thetops kof the rails are exposed. It is, of course',l understoodthat one'or more layers of material may` be used for .this purpose.'

According to the preferred Vmanner of forming this roadbed construction,I first provide a trench of suitable depth and which is slightly widerthan the track. "Ithen place within the trench the main drain conduit 2which is preferably formed of drain tile. Suitable forms are theninserted to provide the trenches 3 and the branch drain openings orconduits 4, la and 5, 5a. The ties are then arranged in place andsupported on suitable blocks with the rails secured thereto in a mannerwell known. to those skilled inthe arti The lower layer of 4concrete isthen poured up to the level shown in Fig. 1 and allowed to harden andset. Due to ltlie shape ofthe angle bars, the end portions of Y thevtieswill bedisposed above the foundation. The spaces beneath the railplates are then lled with bituminous concrete which is 4tamped intoplace. `The rail platesand'the bases of the rails are then covered witha layer of the same `material which "extendsfupwardly to a'point nearthe top of the rails.

The surface of this material is inclined sofas to drain toward thebranch drain conduits hereinbefore referred to'. This materialgisallowed to set and the layer of concrete'l isapplied up to about thelevel indicated in Fig. 1 'and' allowed to harden and set. rIhe layer ofsurface material 17 is then applied in the usual manner and may consistof asphalt,

concrete or any other suitable material. VBy

referring to the drawings, it will be yseen that the branch drainconduits 4, 4a and 5i, 5a

f extend only through the foundation and kterminate along opposite sidesof the rails adjacent the edges of the waterproof material. These drainopenings are preferably about three feet apart and extend along bothsides of therails as shown.v kIt will now be clear that any water whichmay seep' in along the heads of the rails will strile'the layer ofbituminous concrete which is waterproof and be deflected into the branchdrain openings 4, 4a and 5, 5a and drain through the trench 3 into themain drain'conduit 2.

It will also be clear that the upper 'layers of material,.including thebituminous concrete, may be removed downto the foundation withoutYdisturbing the rails so as to permit the railsto be removed'forreplacement or repair without disturbing the foun-V,

dation.v It will now be clear that I have provided a roadbedconstruction which accomvplishes the objectsof'the invention asliereinbefore stated.'A Y j.

Variousfchanges may be made in the'y manner ofassemblingyand arrangingthe various parts without departing from the 4spirit of the invention.rMy inventi'onis also not limited to any particular'type of roadformingmaterial either for the foundation or forthe uppermostlayers,andwhile I have in'this specification used the term concrete, itis to be understood that vI do notintendby this term to limit ytheinvention to any' 'specificH mixture of material, but rather to use jtheterm' generically as embracing all of that class of materials in which asuitable bonding material, such as cement or asphalt, is usedy inconnection with gravel, stone, sand or sim-f' ilar material. It istherefore understoodv thatL the invention is limited only inv accordance'with the scope yof the appended claims.

Having thus described my invention, what I claimis: j j

1'. A roadbed construction for street or boulevard railways comprising'aconcrete foundation, a pluralityof steel ties `of the Y twin type`having rail plates secured to the 100. ends thereof, the centralportions of said tiesVV being embedded in the foundation and the" endportions and rail plates being disposed in, a plane above saidfoundation, rails secured to said rail plates respectively, awat'erproofmaterial llingthe spaces beneaththel frail plates and also VcoveringtheV bases of the f rails and extending upwardly alongeach railtoafpoint adjacent the top; thereof, andVV road formingv materialyfilling' the space ybetween and adjacent said rails.

'2. rloadbed' construction for street or boulevard railways comprising aconcrete foundation, a plurality-of steel ties of they twintype havingrail plates secured to the ends thereof, the central portions of saidties being embedded Vinthe foundation and the end portions andl railplates being disposedy in a plane above said foundation, rails se'-cured to said rail plates respectively, a waterproof material fillingthe spaces beneath the rail plates and also coveringthe bases ofthe.rails and extending upwardly along each rail to aV pointadjacentfthe'top thereof, road' d forming materiallling the spacebetween and adjacent said rails, and a drain conduit disposed below saidfoundation and having ya plurality of branches leading throughthefoundation and terminating along opposite sides ofvsaidy rails. f i

. A roadbed construction for streety or l boulevard railways comprisinga concrete material consisting of bituminous asphalt.

4. A roadbed construction forstreet and boulevard railways comprising aconcretefoundation, a plurality of steel ties the central portions ofwhich are embedded in said foundation and end portions of which aredisposed in a planeabove said foundation, a pair of rails secured tosaid ties respectively, waterproof material filling the spaces beneath,the end portions of said rails, said waterproofing vmaterial extendingupwardly about each of said rails to a point adjacent the top thereof,and road forming material lillilng the space between and adjacent saidrai s.

5. A roadbed construction for street and boulevard railways comprising aconcrete foundation, a plurality of steel tiesthe central portions ofwhich are embedded in said foundation and end portions of which aredisposed in a plane above said foundation, a

tral portions of which rest on said foundation and the end portions ofwhich are disposed in a plane above said foundation, a layer ofwaterproof material filling the spaces beneath the end portions of saidties, a pair of rails secured to said ties respectively, waterproofmaterial filling the spaces beneath the ends of said ties and coveringthe bases of said rails, and road forming material filling the spacebetween and adjacent said rails.,.

8. A roadbed construction for street or boulevard railways comprising aconcrete foundation, a plurality of cross ties the central portions ofwhichrest on said foundation and the end portions of which are` disposedin a plane above said foundation, a layer of waterproof material fillingthe spaces beneath the end portions of said ties, a pair of railssecured to said ties respectively, waterproof material filling thespaces beneath the ends of said ties and the bases of said rails, roadforming material filling the space between and adjacent said rails, anda drain conduit extending along the track and having branches leadingtherefrom for draining water away from the rails.

In testimony whereof, I hereunto affix my signatur WILLIAM P. DAY.

pair of rails secured to said ties respectively, v waterproof materialfilling the spaces beneath the end portions of said rails, saidwaterproofing material extending upwardly about each of said rails to apoint adjacent the top thereof, road forming material filling the spacebetween and adjacent said rails,

and a drain conduit disposed below said foundation and having aplurality of branches c leading through the foundation and terminatingalong opposite sides of said rails.V 6. A roadbed construction forstreetor boulevard railways comprising a concrete foundation, a plurality ofsteel ties the central portions of which are embedded in said foundationand end portions of which are 'the end portions ofsaid rails, saidwaterf proofing material extending upwardly about j each of said railsto a point adjacent the top thereof, and road forming material fillingthe space between and adjacent said rails, saidwaterproofing materialminous asphalt.

7. A roadbed construction for street or consisting of bituboulevardrailways comprising a concrete foundation, a plurality of cross ties thecen-

